message = "Hello Python Crash Course reader!"
print(message)
# use function
strs = 'this is a test message';
print (strs.lower());

# pingjie zifuchuan
f_name = 'fu';
l_name = 'rong';
full_name = f_name + l_name;
print (full_name);

# shanchu kongge
test_str = ' aaabbbccc ';
print (test_str.strip())

message = "One of Python's strengths is its diverse community."
print(message)
# jisuan
print (3.0 / 2)
# chengfang
print (3 ** 2)
# int to string
age = str(23);
message = "Happy " + age + "rd Birthday!"
print (message)

import this
